Whats the purpose of a burial vault and when are they required?
Outer interment containers, or burial vaults, as they are sometimes known, are typically required by many cemeteries in the New York area to shore up the earth above the casket and make lawn care easier to manage. The weight of cemetery equipment such as large trucks and backhoes would crush the casket if an outer container were not used. Many outer containers have special seals and linings that prevent water and other substances from entering the vault. Back to Top 19.